Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Helen E. Dahlke"'
Autor:
Gerardo Spinelli, Amber C. Bonarrigo, Wenyi Cui, Kate Grobowsky, Spencer H. Jordan, Kirsten Ondris, Cristina Prieto García, Karina Redding, Kira Zalis Waldman, Helen E. Dahlke
Publikováno v:
Agricultural Water Management, Vol 303, Iss , Pp 109042- (2024)
Nurseries and greenhouses face challenges of limited water supply and increased demand for irrigation efficiency to minimize runoff and mitigate water loss to the environment. Overhead irrigation systems are among the most widely used methods for con
Externí odkaz:
https://doaj.org/article/598fe17f21d84ebebeef8dd9bbeb7042
Publikováno v:
SoftwareX, Vol 28, Iss , Pp 101893- (2024)
Particle tracking is a common post processing method in groundwater hydrology. In this paper we describe Ichnos, a particle tracking code able to work with flow simulations obtained from either finite difference, finite element, adaptive mesh, or mes
Externí odkaz:
https://doaj.org/article/0dabdd0425894935959ec56c898be5cf
Autor:
Hannah Waterhouse, Sandra Bachand, Daniel Mountjoy, Joseph Choperena, Philip A.M. Bachand, Helen E. Dahlke, William R. Horwath
Publikováno v:
California Agriculture, Vol 74, Iss 03, Pp 144-154 (2020)
The resilience and productivity of California's agriculture is threatened by groundwater overdraft, reduction in aquifer water quality, increased land subsidence damage to infrastructure and an irreversible reduction in groundwater storage capacity.
Externí odkaz:
https://doaj.org/article/2f2cc5c411cd4da584c8592d273cb059
Publikováno v:
Vadose Zone Journal, Vol 20, Iss 5, Pp n/a-n/a (2021)
Abstract Agricultural managed aquifer recharge (Ag‐MAR) is a concept in which farmland is flooded during the winter using excess surface water to recharge the underlying groundwater. In this study, we show how different recharge practices affect NO
Externí odkaz:
https://doaj.org/article/cf337f6e1fe64dc09bee13317f7678c3
Autor:
Salli F. Dymond, Paul W. Richardson, Lynn A. Webb, Elizabeth T. Keppeler, Ivan Arismendi, Kevin D. Bladon, Peter H. Cafferata, Helen E. Dahlke, David L. Longstreth, Patrick K. Brand, Peter R. Ode, Christopher G. Surfleet, Joseph W. Wagenbrenner
Publikováno v:
Frontiers in Forests and Global Change, Vol 4 (2021)
Forests are integral to sustaining clean water resources and healthy watersheds. It is critical, therefore, that managers fully understand the potential impacts of their actions on myriad ecosystem services provided by forested watersheds. While fore
Externí odkaz:
https://doaj.org/article/c2bf8aca9b73445a86c377896171d78f
Autor:
Yonatan Ganot, Helen E. Dahlke
Publikováno v:
Vadose Zone Journal, Vol 20, Iss 3, Pp n/a-n/a (2021)
Abstract One of the suggested approaches to mitigate the chronic groundwater depletion in California is agricultural managed aquifer recharge (Ag‐MAR), in which farmland is flooded using excess surface water in order to recharge the underlying aqui
Externí odkaz:
https://doaj.org/article/f67616a00a8f497c8f6aa9f779767a8c
Publikováno v:
California Agriculture, Vol 72, Iss 01, Pp 65-75 (2018)
It is well known that California experiences dramatic swings in precipitation that are difficult to predict and challenging to agriculture. In times of drought, groundwater serves as a crucial savings account that is heavily relied upon. However, few
Externí odkaz:
https://doaj.org/article/390f827cf97b4a1b9c5599a70a1b0fed
Publikováno v:
Water, Vol 12, Iss 11, p 3190 (2020)
Precipitation occurs in two basic forms defined as liquid state and solid state. Different from rain-fed watershed, modeling snow processes is of vital importance in snow-dominated watersheds. The seasonal snowpack is a natural water reservoir, which
Externí odkaz:
https://doaj.org/article/a82f16d2c8fb4fd0bd57f78275cbeed0
Autor:
Steve W. Lyon, Marcus Nathanson, Norris Lam, Helen E. Dahlke, Martin Rutzinger, Jason W. Kean, Hjalmar Laudon
Publikováno v:
Water, Vol 7, Iss 4, Pp 1324-1339 (2015)
This pilot study explores the potential of using low-resolution (0.2 points/m2) airborne laser scanning (ALS)-derived elevation data to model stream rating curves. Rating curves, which allow the functional translation of stream water depth into disch
Externí odkaz:
https://doaj.org/article/358cbb6e52824d95a054f82de7fdfbf9
Publikováno v:
Journal of Hydrology: Regional Studies, Vol 1, Iss C, Pp 44-56 (2014)
Study region: River basins draining into the Baltic Sea, known as the Baltic Sea Drainage Basin (BSDB). Study focus: Dramatic shifts in water quality have been observed in the Baltic Sea in past decades. This study investigated the spatial distributi
Externí odkaz:
https://doaj.org/article/e0ce06c2d9de4a0bbb0a6490e925f4bd